The Umple Model-Oriented Programming Technology
Syntax tree editor for rapid annotation of existing text
Domain-Driven Design sample application
Open-source code generator for Simulink/Stateflow
Imixs Workflow - the open source business process management
"black technology" will improve development productivity by 1.5 to 5
Workflow control and configuration java framework
Configurable Object Oriented Rapid Application Development system
PetriNetExec a library for embedding Petri Nets into Java applications